State the two Kirchoff's laws for electrical circuits.

In the given circuit current $\rm I_1$ and $\rm I_2$ are:

Kirchoff's second law is based on the law of conservation of

When a resistance of 2 ohm is connected across the terminals of a cell, the current is 0.5 A. When the resistance is increased to 5 ohm, the current is 0.25 A. The e.m.f of the cell is:

Three resistances of values 2 $\rm \Omega$, 3 $\rm \Omega$, and 6 $\rm \Omega$ are to be connected to produce an effective resistance of 4 $\rm \Omega$. This can be done by connecting 

In the circuit shown the value of I in ampere is

Two batteries of different e.m.f.s and different internal resistances are connected as shown. The voltage across AB in volts is 

Figure shows a part of a closed electrical circuit. Then V$_A$ - V$_B$ is